2.5.62: /proc/ide/hpt366 returns incomplete data [7/17]
PATCH 1/1 2.5.62: /proc/ide/hpt366 returns incomplete data [7/17]
This patch fixes the incomplete data return problem of /proc/ide/hpt366. When the number of consecutive read bytes are smaller than the total data in hpt366_get_info(), the second read() returns 0.
drivers/ide/pci/hpt366.c +6 -2
@@ -85,7 +85,7 @@char *chipset_nums[] = {"366" ,"366" ,"368" ,"370" ,"370A" ,"372" ,"302" ,"371" ,"374" }; -int i; +int i, len; p +=sprintf (p,"\n " "HighPoint HPT366/368/370/372/374\n" );
@@ -153,8 +153,12 @@ } } p +=sprintf (p,"\n" ); + +/* p - buffer must be less than 4k! */ + len = (p - buffer) - offset; + *addr = buffer + offset; -return p-buffer;/* => must be less than 4k! */ +return len > count ? count : len; }#endif /* defined(DISPLAY_HPT366_TIMINGS) && defined(CONFIG_PROC_FS) */